Parallel vise



F. AESCHBACH. PARALLEL VISE.

APPLICATION FILED OCT- 9, I920.

1,403,997. H Patented Jan, 17,1922.

PATENT OFFICE.

FRIEDRICH AESCHBACH, OF AARAU, SW ITZERLAN D.

PARALLEL VISE.

Specification of Letters Patent.

Patented Jan. 17, 1922.

Application filed October 9, 1920. Serial No. 415,746.

To all whom it may concern Be it known that I, FRIEDRICH AnsoHBAoH, a citizen of the Republic of Switzerland, residing at Aarau, Switzerland, have invented certain new and useful Improvements in Parallel Vises; and I do hereby declare the following to be a clear, full, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The present invention relates to improvements in parallel Vises. According to the invention two substantially cylindrical members each carrying one of the jaws of the vise are mounted immediately one above the other in a common support, one of the members being arranged stationary and the other displaceably in its axial direction, and the latter sliding upon the former, without the members being able to turn relatively to each other.

Preferably the two cylindrical members are provided with flat sliding faces which prevent a rotary motion of one member relatively to the other. Further the stationary member is preferably provided with a bore, into which a threaded device is inserted, by which the two members are connected to each other and the jaws are operated.

An exemplification of the present invention is shown on the accompanying drawing,

in which:

F 1 is a longitudinal section.

Fig. 2 is a cross-section along line AB of Fig. 1.

Fig. 3 is a cross-section along line C-D of Fig. 1 and Fig. 1 is a cross-section corresponding to F ig. 3, and showing a modified arrangement of the sliding faces.

1 denotes a support made of cast-iron and provided with a Hat plate like base 2. The base 2 and a part 3 extending from one end of the base in a downward direction are provided with holes 4: to take up fixing means of any known type.

The support 1 is provided with two bores 5, 6 of equal diameter arranged one above the other, the distance between the axes of the bores is smaller than the diameter of the bores so that no partition wall is formed between the two bores. The cylindrical rod 7 of the displaceable jaw 8 is guided in the bore 5. The rod 7 is provided with a fiat face at its upper side where the two bores adjoin. The cylindrical rod 9 of the stationary jaw 10 is mounted in the bore 6, the rod 9 being provided with a flat face at its lower side so that the flat face of the rod 7 can slide on the fiat face of the rod 9. The jaws 8 and 10 are integral with the cylindrical rods 7, 9 and are of wrought iron.

The cylindrical rod 9 is provided with a longitudinal bore 11. Vithin this bore a screw threaded spindle 12 is arranged, which is fixed in the one end of rod 9. A tube 11 provided with an internal screw threaded part 13 is screwed on spindle 12. The tube 14 projects into a hole 15 provided on the jaw 8 and is rigidly connected to a gudgeon 16, which is provided with a head 17 arranged outside the jaw 8. A bar 18 passes in a transverse direction through the head 17 in a known manner. A collar 19 provided on the gudgeon 16 abuts against the ring 20 inserted concentrically to the hole 15 in the jaw 8. 21 denotes a covering plate secured to jaw 8 which coacts with collar 19 and prevents a displacement of the latter in the axial direction. The support 1 is provided with a projecting part 22 which serves to support the cylindrical part 7 near the jaw 8.

23 is a. plate fixed by means of screws 24 to the cylindrical rod 9 for the purpose of securing the latter together with the jaw 10 against a displacement in the support 1 and of preventing at the same time a movement of the screw threaded spindle 12 to wards the right (with regard to Fig. 1). An elongation 25 in the horizontal direction of plate 23 covers the endof the rod 7 when the jaws are closed. 26 denotes a dowel pin for maintaining the position of the 10 against the supporting part 1 and increasing therefore the security against a turning of the jaws 8 and 10 together with the cylindrical members 7 and 9. A lubrication hole 27 provided in the support and the rod 9 is closed by a set sr-rew 28.

Upon a turning of the head 17 by means of bar 18, the tube 14 with its internal threaded part 13 is screwed on or off spindle 12 whereby the rod 7 together with the jaw 8 is so displaced, according to the direction in which the head is turned, that the jaws are closed or opened.

The arrangement of supporting the jaws with the cylindrical rods 01' shanks of the jaws in bores of a support enables the construction of each jaw and its rods integral preferably of wrought iron. Furthermore this manner of guiding the jaws ensures a cheap production of the vise, as all the guiding parts can be machined on a lathe and are pressed against each other is fixed to the cylindrical rod of one of the jaws the pressure exerted bysaid spindle is not transmitted to the support as is the case with known construction. By the elongation aood' exact and chea) sumort is formed vertically below the, jaws, this support does not require any special machining or fitting to the support as it 1s machined when boring the bore 5 of the lower cylindrical member 7.

Instead of providing each of the two cylindrical members with a flat face the eta-- tionary rod maybe constructed of a full cylinder section and the displaceable rod may be provided with a concave recess to take up the stationary .rod where the two contact; This arrangement is shown in Fig. l of the drawing. The two rods contacting in this way are prevented from turning against each other.

I claim:

1. A parallel vise, in combination, a sup port, a stationary member of a substantially cylindrical cross-section mounted in said support and provided'with one jaw, a second member of a substantially cylindrical crosssection mounted in said support adapted to slide upon the stationarymember and provided with the other jaw, means to prevent a rotation of said members relatively to i each other and to the support, and a thread ed device for moving said second member with .the jaw towardfand away from the other jaw. v

2'. A parallel vise, in combination, a suppoit,-a stationary member of a substantially support and provided with one jaw, a second cylindrical cross-section mounted in said member of a substantially cylindrical cross- .section mounted in said support yertically below the stationary member adapted to slide upon the latter and provided with the support and carrying one jaw, a second mem-' ber of a substantially cylindrical cross-section mounted in said support vertically below the stationary member adapted to slide upon the latter and carrying the other jaw, there being fiatfaces provided on the cylindrical cross sections of said members on which the latter contact, there being a bore concentrically arranged in the cylindrical part of said stationary member, and a threaded device provided within said bore for moving said second member with its jaw toward and away from the other jaw.

I 4. A parallel vise, in combination, a support, a stationary member of a substantially cylindrical cross-section-mounted in said support and carrying one jaw, a second member of a substantially cylindrical cross-section mounted in said support vertically below the stationary member adapted to slide upon the latter and carrying the other jaw, there being flat faces provided on the cylindrical cross-sections of said members on which the latter contact, there being a bore concentrically arranged in the cylindrical part of said stationary member, a screwthreaded spindle arranged within and coaxially to said bore and rigidly fixed tosaicl stationary member, and a tubular part provided with internal thread cooperating with said spindle and rotatably mounted and se cured against axial displacement in said second member. a r c 5. In a parallel vis'e,a support having two parallel longitudinally intersecting cylindrical bores, jaw shanks mounted in said bores, at least one of which is slidably and non-rotatably fitted to slide on the other shank. I j

6. In a parallel vise, a support havingetwo parallel longitudinally intersecting cylindrical bores, jaw shanks mounted in said bores both of which shanks have contacting sliding faces interlocking against rotation. V

In testimony that I claim the foregoing as my invention, 1 have signed my name.

FRIEDRICH AESGHBA (ll-I. 

